Got an iPhone 4. Running OS 10.6.3. Need to install new iTunes, which requires 10.6.8. Do I have to install 10.6.4-10.6.8 one at a time?

Got an iPhone 4. Running OS 10.6.3. Need to install new iTunes, which requires 10.6.8. Do I have to install 10.6.4-10.6.8 one at a time? Here is my hardware setup:

Model Name: MacBook

Model Identifier: MacBook2,1

Processor Name: Intel Core 2 Duo

Processor Speed: 2.16 GHz

Number Of Processors: 1

Total Number Of Cores: 2

L2 Cache: 4 MB

Memory: 4 GB

Bus Speed: 667 MHz

Boot ROM Version: MB21.00A5.B07

SMC Version (system): 1.17f0